/**
* Respect the "noarchive" meta tag as described here: http://noarchive.net/meta/
* Sample tags that will prevent archiving:
* <meta name="robots" content="noarchive">
* <meta name="amber" content="noarchive">
* <meta name="robots" content="noarchive, noindex">
* <meta name="amber" content="noindex">
* @param string $body HTML document to example
* @return boolean true if there is an application no-archive tag, false otherwise
*/
public static function find_meta_no_archive($body)
{
$head = AmberNetworkUtils::get_head($body);
if (preg_match("/<meta\\s+name\\s*=\\s*['\"](robots|amber)['\"].*content\\s*=\\s*['\"].*(noarchive|noindex).*['\"]/i", $head, $matches)) {
return TRUE;
} else {
return FALSE;
}
}
